| AUTOMATION SYSTEMS LIMITED | Private company limited by shares | Live |
| AVALON SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| Aztec Systems Limited | Private company limited by shares | Live |
| BARTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| B.E.L. SYSTEMS LIMITED | Private company limited by shares | Live |
| BELL SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| BEST SYSTEMS INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| BESTRONIC SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| BioInformatics Systems Limited | Private company limited by shares | Dissolved |
| BIOMED SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| BizCON Systems Limited | Private company limited by shares | Live |
| BOLTOM SYSTEMS COMPANY LIMITED | Private company limited by shares | Live |
| BONCAFINO SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| BULUCO SOFTWARE SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| BUSINESS SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| C BUSINESS SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| JSC BUSINESS SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CAPITAL BUSINESS SYSTEMS LIMITED | Private company limited by shares | Live |
| EASTERN BUSINESS SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| BUSINESS FIRST SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| ICON BUSINESS SYSTEMS LIMITED | Private company limited by shares | Live |
| MOTIVITY BUSINESS SYSTEMS LIMITED | Private company limited by shares | Live |
| OMNI BUSINESS SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| SCHEMA BUSINESS SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| C & E CABINET SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CABLETRON SYSTEMS LIMITED | Private company limited by shares | Live Commenced dormancy on 23-Dec-1997 |
| CADENCE SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CADSMART SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CAPITAL SYSTEMS LIMITED | Private company limited by shares | Live |
| EZ CARD SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| K&G CARPET SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CashCom Systems Limited | | Live |
| CASTLEFORCE SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CELGO SYSTEMS LIMITED | Private company limited by shares | Live |
| SYSTEMS CENTER LIMITED | Private company limited by shares | Dissolved |
| CHAD SYSTEMS LIMITED | Private company limited by shares | Live |
| CHANNEL SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CHANNEL SYSTEMS LIMITED | Private company limited by shares | Live |
| CHAPLET SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CHIU HWA SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CITRON SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CLAIRVOYANCE SYSTEMS LIMITED | Private company limited by shares | Live |
| Cloud Systems Limited | Private company limited by shares | Live |
| CLOUD BUY SYSTEMS LIMITED | Private company limited by shares | Live |
| CLOUD SYSTEMS ASIA LIMITED | Private company limited by shares | Live |
| C-Maxtrix Systems Limited | Private company limited by shares | Live |
| Ningbo Smart Software Systems Co., Limited | Private company limited by shares | Live |
| COASTAL SYSTEMS RESEARCH LIMITED | Private company limited by shares | Dissolved |
| COMNET SYSTEMS COMPANY LIMITED | Private company limited by shares | Live |
| COMPASS SYSTEMS LIMITED | Private company limited by shares | Live |
| COMPRO SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| Extreme CompuTik Systems Limited | Private company limited by shares | Live |
| COMREX SYSTEMS & SOLUTIONS LIMITED | Private company limited by shares | Live Commenced dormancy on 27-Feb-2014 |
| CONSTRUCTIONAL SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| SYSTEMS CONSULTANCY LIMITED | Private company limited by shares | Live |
| AT SYSTEMS CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| GLOBALNET SYSTEMS CONSULTANCY COMPANY LIMITED | Private company limited by shares | Live |
| WWD Controls Systems Holding Limited | | Live |
| COPAN Systems AP, Limited | Private company limited by shares | Dissolved |
| CREATIVE SYSTEMS COMPANY LIMITED | Private company limited by shares | Dissolved |
| CROWD SYSTEMS LIMITED | Private company limited by shares | Live |
| CYBER SYSTEMS COMPANY LIMITED | Private company limited by shares | Dissolved |
| CYBER SYSTEMS ASIA LIMITED | Private company limited by shares | Dissolved |
| CYBERLINK SYSTEMS LIMITED | Private company limited by shares | Live |
| CYBERMED SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CYBERNETTE SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CYBERPOS SYSTEMS LIMITED | Private company limited by shares | Live |
| CYTECH SYSTEMS LIMITED | Private company limited by shares | Live |
| A & J DATAPRO SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| DATATOOL SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| DAVID SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| DBASE SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| DIAVOX SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| DIGITAL SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| A3 DIGITAL SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| D'LIGHT SYSTEMS LIMITED | Private company limited by shares | Live |
| DOMINUS SYSTEMS, LIMITED | Private company limited by shares | Live |
| DURA SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| EASTECH SYSTEMS LIMITED | Private company limited by shares | Live |
| EASTRATELE SYSTEMS COMPANY LIMITED | Private company limited by shares | Dissolved |
| EASYTECH SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| ECHO SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| EduAIR Systems Limited | | Live |
| Efopti Systems Limited | Private company limited by shares | Live |
| EGLighting Systems Limited | Private company limited by shares | Dissolved |
| ELIYA SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| ENHANCED SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| ENTAKE SYSTEMS LIMITED | Private company limited by shares | Live |
| Enterprise Systems Limited | Private company limited by shares | Live |
| EPOM Systems Limited | Private company limited by shares | Live |
| EPRO SYSTEMS LIMITED | Private company limited by shares | Live |
| eRay Systems Limited | Private company limited by shares | Live |
| ESCO SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| ESONEX SYSTEMS LIMITED | Private company limited by shares | Live |
| ESPADA SYSTEMS COMPANY LIMITED | Private company limited by shares | Live |
| EVTEC systems Limited | Private company limited by shares | Live |
| BIT EXCHANGE SYSTEMS LIMITED | Private company limited by shares | Live |
| EXPERT SYSTEMS LIMITED | Private company limited by shares | Live |
| WSA EXPERT SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| DPS EXPERT SYSTEMS LIMITED | Private company limited by shares | Dissolved |